Mastering Bitcoin (3rd ed.) — Antonopoulos & Harding

Overview

Mastering Bitcoin (3rd edition), by Andreas Antonopoulos and David Harding, is the technical reference for how Bitcoin actually works under the hood. It walks through keys and addresses, wallet types, the anatomy of transactions, Bitcoin Script, the peer-to-peer network, the blockchain data structure, mining and consensus, and modern upgrades including SegWit, Taproot and the Lightning Network. It includes real code and command examples, and the full text is freely available online under a Creative Commons license.

The strength is depth and authority: this is genuinely technical, precise material that developers and serious learners rely on, and the third edition updates coverage to current protocol features. The honest caveats: it is emphatically not a first book. If you don't yet understand what Bitcoin is or want the economic "why," start elsewhere — this assumes you want the engineering "how" and rewards some programming and command-line comfort. Certain fast-moving areas (like Lightning) inevitably move faster than any printed book.

Buy it if you're a developer or a technically serious learner who wants the canonical, code-level explanation of Bitcoin. If you want inspiration or economics, Antonopoulos's own Internet of Money or Alden's Broken Money will serve you far better first.